Thread: compiler warning - "mismatch in..."

Hi

I've come across some compiler warnings and I have no idea what they mean. Also, these warning seem to only appear on my laptop, and not on the other computer.

The warning says: "warning C4761: integral size mismatch in argument; conversion supplied".

It occurs at a place in my code where I am outputting data of an object to a file using access methods: e.g.

Code:

file << object.getdata();

Please could someone tell me what this warning means or point me to a source that will tell me, and why this warning only appears on one of my computers and not the other?

Thank you in advance.

What type is "file" and what type does "getdata()" return?

You have to post atleast enough code for us to compile in our heads.

gg

Oh sorry

Writing to a text file in windows xp, and type of data is double.

Works fine for me...

Code:

#include <iostream>
#include <fstream>
using namespace std;

class CObject
{
    double m_d;
public:
    void setdata(double d) {m_d = d;}
    double getdata() {return m_d;}
};//CObject

int main()
{
    CObject object;
    object.setdata(2.3);

    ofstream file("test.txt");
    file << object.getdata();
    file.close();

    return 1;
}//main

You will have to post your code, I suspect that the warning has nothing to do with that line.

gg